Earplug



FIG. 1 is a front view of an earplug showing my new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a plan view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a cross-sectional view taken along line5--5 of FIG. 1;

FIGS. 6 and 7 are cross-sectional views taken along lines 6--6 and 7--7 respectively of FIG. 3. 

The ornamental design for an earplug, as shown. 